where are previous OS X Contacts stored
Where are previous OS X Contacts data stored within current OS X update?
Curent configuration:
iMac 27", Mid 2011
Processor 2.7Ghz Intel Core i5
Memory 4Gb 1333 Mhz DDR3
Graphics AMD Radeon HD 6770M 512 Mb
Recently discovered updating my iMac OS X to latest versions has excluded/failed to include the transfer of all Contacts data.....
Need to identify / locate where previous Contacts data is stored within OS X....in the hope I can restore the historic data to the latest Contacts version
iMac (27-inch Mid 2011), macOS High Sierra (10.13.3), loss of Contacts data in update